Nursing bottle



Nov. 26, 1935. E. GEISTLINGER nunsme BOTTLE Filed May 13, 1951 1INVENTOR Edward @IIS'i/f/W ATTORN EY Patented Nov. 26, 1935 UNITEDSTATES NURSING BOTTLE Edward Geistlinger, Peekski ll, N. Y., assignor toAir Valve Bottle Corporation, Wilmington, Del., a corporation ofDelaware Application May 13, 1931, Serial No. 531,024 Claims. (Cl.215-11) This invention relates to improvements in nursing bottles andhas as an object to provide a bottle with an adjustable air inletwhereby the sucking eifect of the mouth of an infant, as applied to ameans which may be assembled and disassembled v and which may be readilysterilized.

A further feature is in the provision of a bottle so designed as toprevent rolling and which is normally retained in a horizontal-positiontransversely, with the air inlet uppermost longitudinally.

Another aim is to produce bottles which may be readily handled andcorrectly positioned in the dark as well as in the light.

Other and further objects of the invention will be obvious upon anunderstanding of the illustrative embodiment about to be described, orwill be indicated in the appended claims, and various advantages notreferred to herein will occur to one skilled in the art upon employmentof the invention in practice.

In a bottle of ordinary type a continued suction on the nipple creates apartial vacuum therein, causing the walls of the nipple to collapse andclose the passage theretl rough.

In this case considerable air may pass into the infants stomach, causingflatulency, colic and like disorders, in addition to depriving theinfant of food, and creating a distinct annoyance.

Having these matters in mind. the present bottle, including thecharacteristic features indicated by the foregoing objects, has beenevolved,

, the same consisting in the novel design, construction and arrangementof parts hereinafter described and illustrated in the accompanyingdrawing, forming an essential part of 'the disclosure, and in which:-

Figure 1 is a front elevational view of a nursing bottle made inaccordance with the invention.

Figure 2 is a side elevational view of the same. Figure 3' is anenlarged transverse sectional View taken on line 3-3 of Figure 1. I

Figure 4 is'a side view of the bottle as disposed in its preferredposition for use.

5 Figure 5 is a fragmentary sectional view showing the air inlet vent.

Figure 6 is a front view of 'the same. Figure 7 is a view similar toFigure 5, but showing a modified form of vent. 35 Referring in greaterdetail to the drawing, it

will be seen that the main portion of the wall ill of the bottle body isarcuate in cross section, its side edges being integrally connected by aflat member II, the main portion of the body being parallel fromit's/junction with the bottom I2, 6 at the opposite end the body iscontracted, as at 1| 3, to a neck l4, provided with the usualoutstanding annular rim or bead l5 surrounding its mouth, over which isattached a nipple is of any preferred form. i q 1 As shown in Figure 5an opening I! may be formed in the body wall ID, the opening beingadapted to receive a sleeve l8 having a. flange IQ of larger diameterthan that of the opening, and which is drawn firmly against the bottlewall by 15 a nut 20 screw threaded on the outer extending end of thesleeve Hi, there being interposed between the sleeve, fiange and nut, apliable packing 2| to prevent leakage through the joints.

Also threaded on the outer extending end of 20 the sleeve is a cap nut22 used to compressively engage a washer 23 between the inner surface ofthe nut and extreme end of the sleeve.

The washer 23, preferably rubber, is provided with an orifice 24, whilea similar aperture 25 is formd through the cap nut in such manner thatthese openings are in offset relation, incapable of being placed inregistration either fully or partially, to permit the direct entrance ofair, but the nut may be turned to release the pressure on the washerwhereby a thin film of air may enter the bottle as may be desiredalthough liquid is. prevented from escaping. I

In Figure '7 a. hollow boss 26 is formed integrally with the bottle bodyHi, this boss being externally 35 threaded on its end portion to engagea. cap nut 21, similar to the nut 23, and used like it to retain inoperative position as pliable washer 28 provided with an orifice 29,which is offset from an aperture 30 in the cap nut, theseopeningsoperating in the manner above recited.

From the foregoing it will be seen that means are provided for enteringan adjusted quantity of air to the interior of the bottle withoutpermeating the residual milk during use when the bottle is on its flatside and inclined longitudinally with the vent uppermost, withoutpermeating the residual milk during use when the bottle is on its fiatside with the vent uppermost, whereby the ilow of liquid through itsmouth, as covered by a nipple I6, is materially facilitated, these meanswhen properly adjusted retaining the liquid without waste when thebottle is not in use.

It will also be noted that, by reason of the shape run in of the bottle,itis easily manipulated merely by touch and when disposed on its flatside, will not roll ofi its support or out of. reach of an infant.

Although the improvements have been'described with considerable detailand with respect to certain particular forms of the invention it is notdesired to be limited to such details since many changes andmodifications may well be made without departing from the spirit andscope of the invention in its broadest aspect.

Having thus described the invention, what is claimed as new and desiredto secure by Letters Patent, is:- I

1. In a device of the class described, the combination of a nursingbottle having a neck adapted to receive a nipple andhaving asubstantially flat side wall, the inner side of said fiat side wallbeing substantially in a plane tangent to oneside of the neck of thebottle to permit the contents of the bottle to run to the mouth thereofwithout obstruction when the bottle is in substantially horizontalposition on a babys chest, said bottle having a substantially fiatbottom to permit it to be stood upright during sterilization and havingan aperture in the side wall thereof opposite said fiat wall andadjacent to said fiat bottom, venting means in said aperture comprisinga tubular threaded member having a portion fitting about the aperture onthe inside of the bottle, an annular gasket on said tubular memberfitting against the wall of the bottle, a threaded collar member fittingabout the aperture on the outside of the bottle to hold the tubularmember in position, a screw cap threaded to one of said tubular members,and a valve member intermediate said screw cap and one of said threadedmembers for venting thebottle when said cap is loose,

2. In a device of the class described, the combination of a nursingbottle having a neck adapted to receive a nipple and having asubstantially fiat side wall, the inner side of said flat side wallbeing substantially in a plane tangent to one side of the neck of thebottle to permit the contents of the bottle to run to the mouth thereofwithout obstruction when the bottle is in substantially horizontalposition on a babys chest, said neck flaring outwardly to merge with theother side walls of the bottle to prevent the bottle from being inimproper position on a babys chest, said bottle having a substantiallyfiat bottom to permit it to be stood upright during sterilization, andhaving an aperture in the side wall thereof opposite said fiat wall andadjacent to said flat bottom, and venting means in said aperturecomprising a threaded member having a flange fitting about the apertureon the inside of the bottle, a threaded collar fitting about theaperture ,on the outside of the bottle to hold the flange in position, ascrew cap threaded to said threaded member, and a valve memberintermediate said screw cap and 5 said threaded member for venting thebottle when the cap is loose.

3. In a device of the class described, the combination of a nursingbottle having a venting aperture in the wall of the bottle, a flangedthreaded member adapted to extend through said aperture with the flangefitting about the aperture on the inside of. the bottle, a collarthreaded onto said threaded member and fitting about the aperture on theoutside of the bottle to hold the threaded member rigidly and securelyin position, a valve member, and a screw cap threaded about the end ofsaid threaded member for controlling the operation of said valve memberand for venting the bottle to prevent the formation of a partial vacuumtherein.

4. In a device of the class described, the combination of a nursingbottle having a venting aperture in the wall of the bottle, a flangedthreaded member adapted to extend through said aperture with the flangefitting about the aperture on the inside of the bottle, a collarthreaded onto said threaded member and fitting about the aperture on theoutside of the bottle to hold the threaded member rigidly and securelyin position, a screw cap threaded about the end of said threaded member,and a valve member intermediate the cover part of said screw cap and theouter end of said flanged threaded member to provide a valve action forventing the bottle when said cap is loose and for preventing leakage ofthe contents of the bottle.

5. In a venting device for attachment to a nursing bottle having aventing aperture in the wall thereof, the combination of a flangedthreaded member adapted to extend through the aperture of the bottlewith the flange adapted to fit about the aperture on the inside of thebottle, a collar adapted to be threaded onto said threaded memher and tofit about the aperture on the outside of the bottle to hold the threadedmember rigidly and securely in position, a screw cap threaded to saidthreaded member, and a disc member intermediate the cover part of saidscrew cap and the outer end of said threaded member, said disc memberand said cap having offset apertures therein to provide a valvepermitting entrance of air therethrough and preventing milk from leakingtherethrough out of the bottle.

EDWARD GEISTLINGER.

